What is the climax of Portrait a Great Man by Manual Viray?

The climax occurs when Pablo comes to realize he has misunderstood Dr. Gamboa. Dr. Gamboa's death is the turning point. When Pablo receives a letter from Dr. Gamboa, explaining his silence and urging Pablo to continue learning and growing, Pablo experiences profound grief and regret for his misinterpretation of Dr. Gamboa's actions and intentions.